CN207227026U - A kind of trichlorosilane synthetic furnace - Google Patents
A kind of trichlorosilane synthetic furnace Download PDFInfo
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- CN207227026U CN207227026U CN201721206013.XU CN201721206013U CN207227026U CN 207227026 U CN207227026 U CN 207227026U CN 201721206013 U CN201721206013 U CN 201721206013U CN 207227026 U CN207227026 U CN 207227026U
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Abstract
It the utility model is related to a kind of trichlorosilane synthetic furnace, including furnace body, tube bank and blast cap, the furnace body is the tubulose furnace body for being provided with lower sealing, furnace body includes the first furnace body and is laid in the second furnace body of the first upper of furnace body, gas outlet is offered at the top of second furnace body, teletransmission thermometer is laid with the side wall of second furnace body upper end, it is uniformly distributed on first furnace body to have multiple teletransmission thermometers, charge door is provided with the side wall of first upper of furnace body, polylith baffle plate is provided with the furnace chamber of first furnace body, tube bank and blast cap, the outer collar of first furnace body is laid with tube bank, the tube bank includes the heat exchanger tube of one group of opposite header being arranged in parallel and uniform parallel arrangement, connected between the header by more heat exchanger tubes, the upper end of blast cap is fixed in tube bank, the blast cap horizontal layout is in the top of the first furnace body lower sealing.The utility model effectively reduces the carrying amount of fine silica powder, improves the rate of recovery of trichlorosilane.
Description
Technical field
Chemical field is the utility model is related to, more particularly to a kind of trichlorosilane synthetic furnace.
Background technology
At present, the trichlorosilane production technology that manufacturing enterprise of China uses is commonly improved Siemens, in production trichlorine
While hydrogen silicon, system is taken out of with reacting gas, available silicon content 45% is left in the thin silicon ash in this part with 5% thin silicon ash
The right side, needs to be handled by dust pelletizing system after taking out of with system, has both caused to waste, and also increases dust pelletizing system burden, and subsequently
Replacement Treatment is also required to put into larger expense.There is some defective workmanship for pervious synthetic furnace：1st, reaction conversion ratio is low, about
83% or so；2nd, reaction efficiency is low, and separate unit furnace output is low；3rd, it is more to carry thin silicon ash, causes larger waste, high expensive；4th, silicon
Powder utilization rate is poor, and available silicon content is high in silicon ash.
Utility model content
The purpose of this utility model is to provide a kind of carrying amount for effectively reducing fine silica powder, improves the recycling of trichlorosilane
Rate, volume increase, consumption reduction, the trichlorosilane synthetic furnace of performance safety.
To achieve these goals, the technical solution of the utility model is：
A kind of trichlorosilane synthetic furnace, including furnace body, tube bank and furnace body described in blast cap are the tube furnace for being provided with lower sealing
Body, furnace body include the first furnace body and are laid in the second furnace body of the first upper of furnace body, and the height of second furnace body is not more than
2 times of first furnace body height, the second furnace body top offer gas outlet, teletransmission temperature are laid with the side wall of the second furnace body upper end
Count, it is uniformly distributed on first furnace body to have multiple teletransmission thermometers, charge door is provided with the side wall of the first upper of furnace body, the
Polylith baffle plate, tube bank and blast cap are provided with the furnace chamber of one furnace body, the baffle plate includes the first baffle plate and the second baffling
Plate, first baffle plate are in half elliptic, and the first baffle plate is equidistantly laid in the interior collar of the first furnace body from top to bottom
Top, the lower horizontal of the first baffle plate are laid with two piece of second baffle plate, the second baffle plate semicircular in shape, and described first
Multiple circular through holes, the first baffle plate and the angle of the second baffle plate and horizontal plane are offered on baffle plate and the second baffle plate
No more than 45 °, the outer collar of the first furnace body is laid with tube bank, and the tube bank includes one group of opposite header being arranged in parallel and equal
Even heat exchanger tube arranged in parallel, is connected by more heat exchanger tubes between the header, and the upper end of blast cap, the wind are fixed in tube bank
Cap horizontal layout is in the top of the first furnace body lower sealing.
Further, the height ratio of first furnace body and the second furnace body is 1.3:2.
Further, be laid with a teletransmission thermometer at the top of second furnace body, the first furnace body it is upper uniformly distributed
There are three teletransmission thermometers.
Further, the heat exchanger tube is made of 54 DN40 seamless carbon steel tubes.
Further, the baffle plate includes two piece of first baffle plate and two piece of second baffle plate, the first baffle plate and
The angle of two baffle plates and horizontal plane is 45 °, and the perforate spacing of the first baffle plate and the second baffle plate is 30 millimeters, aperture
It is 20 millimeters.
Further, the one side wall of the first furnace body lower sealing is provided with air inlet, the bottom of the first furnace body lower sealing
It is provided with slag-drip opening.
The beneficial effects of the utility model are：
1. the utility model increases furnace body by laying, the effective carrying amount for reducing fine silica powder, ensure that in synthetic furnace
Available silicon content has saved substantial amounts of resource close to zero in outlet blowout silicon ash；
2. the utility model have adjusted the heat exchange length restrained in synthetic furnace by laying, ensure that in upper chamber
Reaction temperature, so as to extend the reaction time in stove, increase the yield of synthetic furnace, silica flour reaction it is more abundant, reduce silica flour
Unit consumption；
3. the utility model is 45 ° of baffle plates by laying polylith inclination angle in synthetic furnace, make hydrogen chloride and silica flour abundant
Haptoreaction, the inclination angle of baffle plate is identical, can be consistent the temperature of same cross section, and improving the true of reaction temperature can
Control property, improves the rate of recovery of trichlorosilane；
4. the utility model reduces trichlorosilane production cost, reduce the wasting of resources, prevent security risk, it is real
Existing clean manufacturing, silica flour utilization rate is significantly lifted, ensure that production cost is greatly lowered.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of trichlorosilane synthetic furnace of the utility model.
Fig. 2 is a kind of structure diagram of the first baffle plate of trichlorosilane synthetic furnace of the utility model.
Fig. 3 is a kind of structure diagram of the second baffle plate of trichlorosilane synthetic furnace of the utility model.
Attached figure label is：1 is the first furnace body, and 2 be the second furnace body, and 3 be header, and 4 be blast cap, and 5 be teletransmission thermometer, 6
It is the second baffle plate for the first baffle plate, 7,8 be charge door, and 9 be air inlet, and 10 be slag-drip opening, and 11 be heat exchanger tube, and 12 be outlet
Mouthful.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and detailed description：
As shown in FIG. 1 to 3, a kind of trichlorosilane synthetic furnace, including furnace body, tube bank and blast cap 4, the furnace body are setting
There is a tubulose furnace body of lower sealing, furnace body includes the first furnace body 1 and the second furnace body 2 for being laid in 1 top of the first furnace body, and described the
The height of two furnace bodies 2 is not more than 2 times of 1 height of the first furnace body, and the height ratio of 1 and second furnace body 2 of the first furnace body is 1.3:
2, the top of the second furnace body 2 offers gas outlet 12, and teletransmission thermometer 5, the first furnace body are laid with the side wall of 2 upper end of the second furnace body
1 it is upper it is uniformly distributed have three teletransmission thermometers 5, charge door 8 is provided with the side wall on 1 top of the first furnace body, the first furnace body 1
Polylith baffle plate, tube bank and blast cap 4 are provided with furnace chamber, the baffle plate includes the first baffle plate 6 and the second baffle plate 7, institute
It is in half elliptic to state the first baffle plate 6, and the first baffle plate 6 is equidistantly laid in the upper of the interior collar of the first furnace body 1 from top to bottom
Portion, the lower horizontal of the first baffle plate 6 are laid with two piece of second baffle plate 7,7 semicircular in shape of the second baffle plate, and described
Multiple circular through holes, the first baffle plate 6 and the second baffle plate 7 and horizontal plane are offered on one baffle plate 6 and the second baffle plate 7
Angle no more than 45 °, the baffle plate includes two piece of first baffle plate 6 and two piece of second baffle plate 7, the first baffle plate 6
Angle with the second baffle plate 7 and horizontal plane is 45 °, and the perforate spacing of the first baffle plate 6 and the second baffle plate 7 is 30 millis
Rice, aperture is 20 millimeters, the outer collar of the first furnace body 1 is laid with tube bank, and the tube bank includes one group with respect to being arranged in parallel
Header 3 and the heat exchanger tube 11 of uniform parallel arrangement, are connected between the header 3, the heat exchanger tube 11 by more heat exchanger tubes 11
It is made of 54 DN40 seamless carbon steel tubes, the upper end of blast cap 4 is fixed in tube bank, and 4 horizontal layout of blast cap is under the first furnace body 1
The top of sealing, the one side wall of 1 lower sealing of the first furnace body are provided with air inlet 9, and the bottom of 1 lower sealing of the first furnace body is set
There is slag-drip opening 10.
In use, silica flour is added in synthetic furnace by charge door 8 first, the conduction oil in tube bank is heated, and will be closed
300 °C are heated into furnace temperature, then hydrogen chloride enters from bottom, enters synthetic furnace by blast cap 4, silica flour in stove is blown afloat,
Boiling reaction is carried out, the temperature change of teletransmission thermometer 5 in synthetic furnace is monitored, conduction oil in tube bank is subjected to cooling drop in time
Temperature, hydrogen chloride and silica flour effective haptoreaction in synthetic furnace by baffle plate, as a kind of embodiment, in the present embodiment
The second furnace body 2 length be 6 meters, tiny silicon powder particle is still reacted at the second furnace body 2 with hydrogen chloride, is monitored at the same time
The temperature change of second furnace body, 2 top teletransmission thermometer 5, product and a little fine silica powder are arranged at the gas outlet 12 of synthetic furnace
Go out, carry out lower step process；After stove stable reaction to be synthesized, the temperature control of two teletransmission thermometers 5 of 1 lower part of the first furnace body exists
In the range of 360-380 °C, the control of synthetic furnace pressure difference is adjusted in 600-800Nm in 18-22KPa, hydrogen chloride flow3/ h, persistently adds
Enter hydrogen chloride and silica flour, make hydrogen chloride and silica flour successive reaction, obtain trichlorosilane, discharged and collected by gas outlet 12.
The preferred embodiment of the embodiment of the above, simply the utility model, not limits the utility model
Practical range, therefore the equivalent change or modification that all construction, feature and principles according to described in the utility model patent scope are done,
It should be included in present utility model application the scope of the claims.
Claims (6)
1. a kind of trichlorosilane synthetic furnace, it is characterised in that including furnace body, tube bank and blast cap（4）, the furnace body is to be provided with down
The tubulose furnace body of sealing, furnace body include the first furnace body（1）And it is laid in the first furnace body（1）Second furnace body (2) on top, it is described
The height of second furnace body (2) is not more than 2 times of the first furnace body (1) height, the second furnace body（2）Top offers gas outlet（12）,
Be laid with teletransmission thermometer (5) on the side wall of the second furnace body (2) upper end, on first furnace body (1) it is uniformly distributed have it is multiple remote
Thermometer (5) is passed, charge door (8) is provided with the side wall on the first furnace body (1) top, is provided with the furnace chamber of the first furnace body (1)
Polylith baffle plate, tube bank and blast cap (4), the baffle plate include the first baffle plate (6) and the second baffle plate (7), and described first
Baffle plate (6) is in half elliptic, and the first baffle plate (6) is equidistantly laid in the upper of the interior collar of the first furnace body (1) from top to bottom
Portion, the lower horizontal of the first baffle plate (6) are laid with two piece of second baffle plate (7), the second baffle plate (7) semicircular in shape,
First baffle plate（6）With the second baffle plate（7）On offer multiple circular through holes, the first baffle plate（6）With the second folding
Flowing plate（7）Angle with horizontal plane is no more than 45 °, the first furnace body（1）Outer collar be laid with tube bank, the tube bank includes one
The opposite header being arranged in parallel of group（3）With the heat exchanger tube of uniform parallel arrangement（11）, the header（3）Between pass through more heat exchange
Pipe（11）Blast cap is fixed in connection, tube bank（4）Upper end, the blast cap（4）Horizontal layout is in the first furnace body（1）Lower sealing it is upper
Portion.
A kind of 2. trichlorosilane synthetic furnace according to claim 1, it is characterised in that first furnace body（1）With second
Furnace body（2）Height ratio be 1.3:2.
A kind of 3. trichlorosilane synthetic furnace according to claim 1, it is characterised in that second furnace body（2）Top
It is laid with a teletransmission thermometer（5）, the first furnace body（1）Upper uniformly distributed have three teletransmission thermometers（5）.
A kind of 4. trichlorosilane synthetic furnace according to claim 1, it is characterised in that the heat exchanger tube（11）By 54
DN40 seamless carbon steel tubes form.
5. a kind of trichlorosilane synthetic furnace according to claim 1, it is characterised in that the baffle plate includes two piece first
Baffle plate（6）With two piece of second baffle plate（7）, the first baffle plate (6) and the second baffle plate (7) and the angle of horizontal plane are
45 °, the perforate spacing of the first baffle plate (6) and the second baffle plate (7) is 30 millimeters, and aperture is 20 millimeters.
A kind of 6. trichlorosilane synthetic furnace according to claim 1, it is characterised in that first furnace body（1）Lower sealing
One side wall be provided with air inlet（9）, the first furnace body（1）The bottom of lower sealing is provided with slag-drip opening（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206013.XU CN207227026U (en) | 2017-09-20 | 2017-09-20 | A kind of trichlorosilane synthetic furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206013.XU CN207227026U (en) | 2017-09-20 | 2017-09-20 | A kind of trichlorosilane synthetic furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207227026U true CN207227026U (en) | 2018-04-13 |
Family
ID=61863131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721206013.XU Active CN207227026U (en) | 2017-09-20 | 2017-09-20 | A kind of trichlorosilane synthetic furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207227026U (en) |
-
2017
- 2017-09-20 CN CN201721206013.XU patent/CN207227026U/en active Active
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Effective date of registration: 20230710 Granted publication date: 20180413 |
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